Cap and trade, data, open journals, and more econblogs.

Krugman explains the basics of cap-and-trade.

Here's a handy little tool from IBM to facilitate data visualization. Looks neat!

And, if you didn't know about this before, but there's an open-access Economics journal. There look to be some really neat articles in there.

In the same vein, here's an econblog aggregator to keep up with research and academic blogs. Thanks to RePEc.